Changing a "slow starter"

It seems to take me a while to get going in a match, and specifically when I play a Sat morning match after no tennis during the week. I do daily shadow swings and general exercise, just no tennis.

I've started doing 5-10 mins of calisthenics before heading to the courts, and that's helping some. But the fundamental thing seems to be that it just takes me a while to get going. Part of the problem is wanting to avoid hurting myself (~60), but it's mostly that it just seems to take me a while to get going.

Would be interested in any ideas around getting into the match faster.

Well, I, also, participate in a Saturday thing that starts at 8:00 am, and I am, also, in my 60s and also like to warm up before the competition begins.

I solve the problem by showing up early (around 7:00 am) and if there is nobody to hit with (rarely), I will practice with the wall and then loosen up my serve, then practice with the first to arrive until the games begin.

I see that you are from NY where it may be more difficult to schedule court time than here (CA). So, if you don't have a wall or early access to the courts, and no one to warm up with (ball machine?)- then you may be doing all that you can with your work-out at home.